body{
    color:white;
    font-size: 20px;
    text-align: center;
}

.block1{
    height: 50px;
}

.nav{
    width: 90%;
    line-height: 50px;
    background-color:darkgreen;
    float: left;
}

.login{
    width:9.5%;
    line-height: 50px;
    float: right;
    background-color:violet;
    border-left: 2px;
}


.block2{
    margin-top: 3px;
    background-color: blue;
    line-height: 40px;
}

.block3{
    height: 600px;
    border-top: 3px；
}

#block3_left{
    float: left;
    margin-top: 5px;
    border-width: 1em;
    width: 80%;
    line-height: 280pt;
}

#block3_page{
    border-top: 5px solid white;
    background-color: blue;
    line-height: 550pt;
}


#block3_pagelist{
    border-top: 5px solid white;
    background-color: blue;
    line-height: 50pt;
}

#block3_right{
    float: right;
    margin-top: 5px;
    width:19.5%;
    border-width: 1em;
    background-color: blue;
}


#block3_date{
    border-top: 3px solid white;
    line-height: 200pt;
}

#block3_data{
    border-top: 3px solid white;
    line-height: 200pt;
}

#block3_other{
    border-top: 3px solid white;
    line-height: 200pt;
}

.end{
    border-top: 3px;
    background-color:blue;
    line-height: 40px;
    margin-top: 12%;
}

